3. Remove old latch part by undoing the two cross head screws and lifting out U bracket.

4. Rescue the small spring which keeps the latch engaged.

5. This spring has one end that narrows down slightly. Hold the very end of this with tweezers or needle point pliers and then wrap the spring onto the cross (a tooth pick or a match end is handy for this).

6. Place new latch in position, add bracket and resecure with the two screws.